ADA4610-4ARUZ-RL7 - Quad JFET Op Amp, Low Noise | Analog Devices
MPN： ADA4610-4ARUZ-RL7 ✓ 啟用中ADA4610-4ARUZ-RL7 概覽
A JFET-input operational amplifier is a type of op amp that uses junction field-effect transistors at its input stage, providing very high input impedance and low input bias current. This makes it ideal for applications requiring minimal loading of the signal source, such as sensor interfaces, photodiode amplifiers, and precision instrumentation. The ADA4610-4 belongs to the family of precision amplifiers, which are characterized by low offset voltage, low noise, and high DC accuracy, essential for high-resolution measurement systems.
Key features of the ADA4610-4 include a low input voltage noise of 7.3 nV/√Hz at 1 kHz, a low input bias current of 2 pA (typical), and a low offset voltage of 90 µV (maximum). The rail-to-rail output stage allows maximum output swing, and the device can drive capacitive loads up to 500 pF without oscillation. The quad configuration integrates four independent amplifiers in a single package, saving board space and reducing cost per channel.
The ADA4610-4 uses a precision JFET process that minimizes die temperature effects, ensuring low input bias currents even at elevated ambient temperatures. This makes it ideal for applications requiring low leakage specifications without active cooling. The internal protective circuitry allows input voltages up to 0.3 V beyond the supplies without damage, enhancing robustness in harsh environments.
Typical applications include precision data acquisition systems, active filters, instrumentation amplifiers, and medical equipment. The low noise and low bias current make it particularly suited for photodiode amplification and high-impedance sensor interfaces. The rail-to-rail output enables full-scale signal swing in single-supply systems, simplifying power supply design.
When designing with the ADA4610-4, ensure proper bypassing of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The input bias current is extremely low, so the use of guard rings around the input pins can help minimize leakage currents on the PCB. Also, consider the output drive capability when driving heavy loads, as the device is optimized for low power consumption.
直接替換替代品，適用於 ADA4610-4ARUZ-RL7 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADA4610-4ARUZ-RL7 （相同外形與佔位） — 差異在於 Gain Bandwidth Product, Package.
ADA4610-4ARUZ
✅ 直接替換聯絡詢價
查看資料表 →ADA4610-4ARUZ-RL
✅ 直接替換📋 參考替代品（不在目錄中）
ADA4610-4ARUZ-RL7 最大額定值與電氣特性
| Number of Channels | 4 |
| Amplifier Type | J-FET |
| 輸出類型 | Rail-to-Rail |
| Supply Voltage Range | ±5 V to ±15 V (or 10 V to 30 V single supply) |
| Input Offset Voltage | 90 µV (max) |
| Input Bias Current | 2 pA (typical) |
| Input Voltage Noise Density | 7.3 nV/√Hz at 1 kHz |
| Current Noise Density | 0.8 fA/√Hz at 1 kHz |
| Gain Bandwidth Product | 16.5 MHz |
| Slew Rate | 61 V/µs |
| 工作溫度範圍 | -40°C to +125°C |
| 封裝 | 14-Lead TSSOP |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| MSL 等級 | 1 |
ADA4610-4ARUZ-RL7 腳位配置
| 腳位 1 | OUT A — Output of amplifier A |
| 腳位 2 | -IN A — Inverting input of amplifier A |
| 腳位 3 | +IN A — Non-inverting input of amplifier A |
| 腳位 4 | V+ — Positive supply |
| 腳位 5 | +IN B — Non-inverting input of amplifier B |
| 腳位 6 | -IN B — Inverting input of amplifier B |
| 腳位 7 | OUT B — Output of amplifier B |
| 腳位 8 | OUT C — Output of amplifier C |
| 腳位 9 | -IN C — Inverting input of amplifier C |
| 腳位 10 | +IN C — Non-inverting input of amplifier C |
| 腳位 11 | V- — Negative supply |
| 腳位 12 | +IN D — Non-inverting input of amplifier D |
| 腳位 13 | -IN D — Inverting input of amplifier D |
| 腳位 14 | OUT D — Output of amplifier D |
典型應用
ADA4610-4ARUZ-RL7 適用於 6 應用s: Precision Data Acquisition Systems, Active Filters, Instrumentation Amplifiers, Photodiode Amplifiers, Medical Instrumentation, Industrial Process Control.
Precision Data Acquisition Systems
The ADA4610-4ARUZ-RL7 is ideal for precision data acquisition systems due to its low offset voltage (90 µV max), low input bias current (2 pA), and low noise (7.3 nV/√Hz). These parameters ensure accurate signal conditioning for high-resolution ADCs. The quad configuration allows multiple channels to be processed in a single package, reducing board space and cost. Its rail-to-rail output maximizes the dynamic range of the ADC input, and the wide supply range accommodates various system voltages. The low bias current minimizes errors when interfacing with high-impedance sensors, making it suitable for industrial and laboratory instrumentation.
推薦
Active Filters
The ADA4610-4ARUZ-RL7 is well-suited for active filter designs due to its high gain bandwidth product (16.5 MHz) and low noise. Its low input bias current allows the use of high-value resistors in filter networks without introducing significant DC errors. The rail-to-rail output enables large signal swings, and the quad configuration allows implementation of multi-stage filters in a single IC. The device's stability with capacitive loads up to 500 pF ensures reliable operation in filter circuits. These features make it ideal for audio processing, communication systems, and instrumentation.
推薦
Instrumentation Amplifiers
The ADA4610-4ARUZ-RL7 can be used to build precision instrumentation amplifiers due to its low offset voltage and low noise. Its JFET input provides high input impedance, minimizing loading on the signal source. The quad configuration allows implementation of a three-op-amp instrumentation amplifier with a single IC. The low bias current reduces errors in high-source-impedance applications, such as biomedical sensors and strain gauges. The wide supply range and rail-to-rail output make it versatile for various signal conditioning requirements.
推薦
Photodiode Amplifiers
The ADA4610-4ARUZ-RL7 is excellent for photodiode amplifier circuits due to its extremely low input bias current (2 pA) and low voltage noise. The low bias current minimizes dark current errors, and the low noise ensures high signal-to-noise ratio for weak optical signals. The JFET input provides high impedance, which is essential for transimpedance amplifiers. The quad configuration allows multiple photodiode channels to be processed in one package, making it ideal for optical sensing arrays and medical imaging equipment.
推薦
Medical Instrumentation
The ADA4610-4ARUZ-RL7 is suitable for medical instrumentation such as ECG and EEG amplifiers due to its low noise and low bias current. The low input bias current reduces electrode offset errors, and the low noise ensures accurate signal acquisition. The rail-to-rail output allows full-scale signal processing, and the wide supply range accommodates battery-powered devices. The quad configuration enables multi-channel monitoring in a compact form factor, which is critical for portable medical devices. Its extended temperature range (-40°C to +125°C) ensures reliable operation in clinical environments.
推薦
Industrial Process Control
The ADA4610-4ARUZ-RL7 is ideal for industrial process control systems that require precision signal conditioning. Its low offset voltage and low drift ensure accurate measurement of process variables such as temperature and pressure. The low bias current allows direct interface with high-impedance sensors, and the rail-to-rail output provides compatibility with ADCs and controllers. The quad configuration reduces component count and board space, improving reliability. The wide supply range and robust input protection make it suitable for harsh industrial environments.
推薦
推薦產品摘要
工程參考資料，適用於 ADA4610-4ARUZ-RL7 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADA4610-4ARUZ | ADA4610-4ARUZ-RL | ADA4610-4ARZ-R7 | ADA4610-4ARZ | OPA4140AIDR |
|---|---|---|---|---|---|---|
| Package | 14-Lead TSSOP | 14-Lead TSSOP | 14-Lead TSSOP | 14-Lead SOIC | 14-Lead SOIC | 14-Lead SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Input Offset Voltage (max) | 90 µV | 90 µV | 90 µV | 90 µV | 90 µV | 120 µV |
| Input Bias Current (typ) | 2 pA | 2 pA | 2 pA | 2 pA | 2 pA | 10 pA |
| Voltage Noise Density at 1 kHz | 7.3 nV/√Hz | 7.3 nV/√Hz | 7.3 nV/√Hz | 7.3 nV/√Hz | 7.3 nV/√Hz | 5.5 nV/√Hz |
| Gain Bandwidth Product | 16.5 MHz | 16.5 MHz | 16.5 MHz | 16.5 MHz | 16.5 MHz | 11 MHz |
| Slew Rate | 61 V/µs | 61 V/µs | 61 V/µs | 61 V/µs | 61 V/µs | 20 V/µs |
主要差異化特點
- Lower input bias current (對比OPA4140AIDR)
- Higher slew rate (對比OPA4140AIDR)
- Wider supply range (對比OPA4140AIDR)
設計說明
Bypass the power supply pins with 0.1 µF ceramic capacitors placed as close as possible to the V+ and V- pins. Additionally, use a 10 µF tantalum capacitor in parallel for low-frequency decoupling. This ensures stable operation and minimizes noise coupling from the power supply.
For high-impedance inputs, use guard rings around the input pins to minimize leakage currents. The guard ring should be driven by a low-impedance source at the same potential as the input. This is especially important for photodiode amplifiers and other high-source-impedance applications.
Do not exceed the absolute maximum supply voltage of ±18 V. Also, ensure that the input voltages do not exceed the supply rails by more than 0.3 V, as specified in the datasheet. Exceeding these limits can damage the device.
合規資訊
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
